A thought form can be more then an astral/mental construct. any outward expression of your will/thoughts essentially gives them form, and is thus a thought form. a form of your thoughts. an embodiment and expression of them. when empowered with energy and emotion, they become a means of magick.
Force and Form. energy taken and shaped into a means of achieving your goal and then given form in the physical world as an expression of your thoughts and will.
Cosmic Wonderings 